Kronos Worldwide (KRO) 10-Q6 Nov 242024 Q3 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Sep. 30, 2024	Nov. 01, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2024
Document Transition Report	false
Entity File Number	1-31763
Entity Registrant Name	KRONOS WORLDWIDE, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	76-0294959
Entity Address, Address Line One	5430 LBJ Freeway
Entity Address, Address Line Two	Suite 1700
Entity Address, City or Town	Dallas
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75240-2620
City Area Code	972
Local Phone Number	233-1700
Title of 12(b) Security	Common stock
Trading Symbol	KRO
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		115,036,316
Entity Central Index Key	0001257640
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Amendment Flag	false

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 94.8	$ 194.7
Restricted cash	3.1	2.2
Accounts and other receivables, net	366.5	312.5
Inventories, net	548.6	564.6
Prepaid expenses and other	54.8	43.4
Total current assets	1,067.8	1,117.4
Other assets:
Investment in TiO2 manufacturing joint venture		111
Restricted cash	5	5.2
Marketable securities	4.8	2.2
Operating lease right-of-use assets	22	22.7
Deferred income taxes	70.3	83.3
Goodwill	2.6
Other	28.2	13.3
Total other assets	132.9	237.7
Property and equipment:
Land	77	44.7
Buildings	268.9	236.8
Equipment	1,382.5	1,172
Mining properties	126.7	130.5
Construction in progress	33.1	22.9
Gross property and equipment	1,888.2	1,606.9
Less accumulated depreciation and amortization	1,167.3	1,124
Net property and equipment	720.9	482.9
Total assets	1,921.6	1,838
Current liabilities:
Current maturities of long-term debt	83.9
Accounts payable and accrued liabilities	296.7	355.4
Income taxes	17.7	15.4
Total current liabilities	398.3	370.8
Noncurrent liabilities:
Long-term debt	470.4	440.9
Accrued pension costs	144.2	150
Operating lease liabilities	18.1	18.6
Deferred income taxes	10.7	9
Other	32.5	21.8
Total noncurrent liabilities	675.9	658.9
Stockholders' equity:
Common stock	1.2	1.2
Additional paid-in capital	1,390.3	1,390.2
Retained deficit	(192.1)	(242)
Accumulated other comprehensive loss	(352)	(341.1)
Total stockholders' equity	847.4	808.3
Total liabilities and stockholders' equity	$ 1,921.6	1,838
Related party
Noncurrent liabilities:
Payable to affiliate - income taxes		$ 18.6

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Net sales	$ 484.7	$ 396.9	$ 1,464	$ 1,266.4
Cost of sales	383.5	362.5	1,191.1	1,157.1
Gross margin	101.2	34.4	272.9	109.3
Selling, general and administrative expense	62.3	53.6	174.4	156.9
Other operating income (expense):
Currency transactions, net	2.9	(3.9)	4.9	4.6
Other operating expense, net	(2.9)	(2.2)	(9.1)	(7.3)
Income (loss) from operations	38.9	(25.3)	94.3	(50.3)
Other income (expense):
Gain on remeasurement of investment in TiO2 manufacturing joint venture	64.5		64.5
Interest and dividend income	1.1	1.5	4.5	5
Marketable equity securities	2.2		2.6	(1.3)
Other components of net periodic pension and OPEB cost	(0.4)	(1)	(1)	(4.1)
Interest expense	(11.8)	(4.3)	(30.8)	(12.8)
Income (loss) before income taxes	94.5	(29.1)	134.1	(63.5)
Income tax expense (benefit)	22.7	(8.7)	34.7	(19.7)
Net income (loss)	$ 71.8	$ (20.4)	$ 99.4	$ (43.8)
Net income (loss) per share - basic	$ 0.62	$ (0.18)	$ 0.86	$ (0.38)
Net income (loss) per share - diluted	$ 0.62	$ (0.18)	$ 0.86	$ (0.38)
Weighted average shares outstanding - basic	115	115	115	115.1
Weighted average shares outstanding - diluted	115	115	115	115.1

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Net income (loss)	$ 71.8	$ (20.4)	$ 99.4	$ (43.8)
Other comprehensive income (loss), net of tax:
Currency translation	6.3	(1.4)	(12.4)	(14.1)
Total other comprehensive income (loss), net	6.8	(1.1)	(10.9)	(11.9)
Comprehensive income (loss)	78.6	(21.5)	88.5	(55.7)
Defined benefit pension plans
Other comprehensive income (loss), net of tax:
Defined benefit pension plans	$ 0.5	0.4	$ 1.5	2.4
Other postretirement benefit plans
Other comprehensive income (loss), net of tax:
Defined benefit pension plans		$ (0.1)		$ (0.2)

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Common stock	Additional paid-in capital	Retained deficit	Accumulated other comprehensive loss	Treasury stock	Total
Balance at beginning of period at Dec. 31, 2022	$ 1.2	$ 1,394.3	$ (105.4)	$ (331.5)	$ (1.4)	$ 957.2
Treasury stock acquired					(2.8)
Balance at end of period at Jun. 30, 2023	1.2	1,390.2	(172.6)	(342.3)		876.5
Balance at beginning of period at Dec. 31, 2022	1.2	1,394.3	(105.4)	(331.5)	(1.4)	957.2
Net income (loss)			(43.8)			(43.8)
Other comprehensive loss, net of tax				(11.9)		(11.9)
Issuance of common stock		0.1				0.1
Dividends paid			(65.6)			(65.6)
Treasury stock acquired					(2.8)	(2.8)
Treasury stock retired		(4.2)			$ 4.2
Balance at end of period at Sep. 30, 2023	1.2	1,390.2	(214.8)	(343.4)		833.2
Balance at beginning of period at Jun. 30, 2023	1.2	1,390.2	(172.6)	(342.3)		876.5
Net income (loss)			(20.4)			(20.4)
Other comprehensive loss, net of tax				(1.1)		(1.1)
Dividends paid			(21.8)			(21.8)
Balance at end of period at Sep. 30, 2023	1.2	1,390.2	(214.8)	(343.4)		833.2
Balance at beginning of period at Dec. 31, 2023	1.2	1,390.2	(242)	(341.1)		808.3
Net income (loss)			99.4			99.4
Other comprehensive loss, net of tax				(10.9)		(10.9)
Issuance of common stock		0.1				0.1
Dividends paid			(49.5)			(49.5)
Balance at end of period at Sep. 30, 2024	1.2	1,390.3	(192.1)	(352)		847.4
Balance at beginning of period at Jun. 30, 2024	1.2	1,390.3	(258.1)	(358.8)		774.6
Net income (loss)			71.8			71.8
Other comprehensive loss, net of tax				6.8		6.8
Dividends paid			(5.8)			(5.8)
Balance at end of period at Sep. 30, 2024	$ 1.2	$ 1,390.3	$ (192.1)	$ (352)		$ 847.4

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2022	Sep. 30, 2024	Sep. 30, 2023
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
Cash dividends per share	$ 0.05	$ 0.19	$ 0.43	$ 0.57

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities:
Net income (loss)	$ 99.4	$ (43.8)
Depreciation	46.3	36.6
Amortization of operating lease right-of-use assets	3	3.4
Gain on remeasurement of investment in TiO2 manufacturing joint venture	(64.5)
Premium on issuance of senior secured notes	6
Deferred income taxes	12.1	(31.7)
Benefit plan expense less than cash funding	(6.7)	(4.3)
Marketable equity securities	(2.6)	1.3
Contributions to TiO2 manufacturing joint venture, net	(2.7)	(2.8)
Other, net	3.4	1.6
Change in assets and liabilities:
Accounts and other receivables, net	(68)	(57.2)
Inventories, net	93.9	106.5
Prepaid expenses	(10.3)	3
Accounts payable and accrued liabilities	(68.1)	(71.2)
Income taxes	2.7	3.8
Accounts with affiliates	(21.1)	(5.2)
Other, net	0.4	1.1
Net cash provided by (used in) operating activities	23.2	(58.9)
Cash flows from investing activities:
Capital expenditures	(17.2)	(42.1)
Acquisition of remaining TiO2 manufacturing joint venture interest, net of cash acquired	(156.8)
Net cash used in investing activities	(174)	(42.1)
Cash flows from financing activities:
Borrowings	148.6
Payments	(123.9)
Payments on long-term debt	(52.6)	(0.5)
Proceeds from issuance of senior secured notes	80.2
Loan from Contran	53.7
Deferred financing fees	(9.3)
Dividends paid	(49.5)	(65.6)
Treasury stock acquired		(2.9)
Net cash provided by (used in) financing activities	47.2	(69)
Cash, cash equivalents and restricted cash - net change from:
Operating, investing and financing activities	(103.6)	(170)
Effect of currency exchange rate changes on cash	4.4	(2.8)
Balance at beginning of period	202.1	334.6
Balance at end of period	102.9	161.8
Cash paid for:
Interest, net of amount capitalized	31.8	15.8
Income taxes	36.4	15.2
Accrual for capital expenditures	$ 1.4	$ 0.8

Organization and basis of prese

Organization and basis of presentation	9 Months Ended
Organization and basis of presentation	Sep. 30, 2024
Organization and basis of presentation
Organization and basis of presentation	Note 1 - Organization and basis of presentation: Organization Thomas C. Connelly (the husband of Ms. Simmons’ late sister), ) required to vote their shares of Contran voting stock in the same manner as Ms. Simmons. Basis of presentation Effective July 16, 2024 (“Acquisition Date”), we acquired the 50% joint venture interest in Louisiana Pigment Company, L.P. (“LPC”) previously held by Venator Investments, Ltd. (“Venator”). Prior to the acquisition, we held a 50% joint venture interest in LPC and LPC was operated as a manufacturing joint venture between us and Venator. Following the acquisition, LPC became a wholly-owned subsidiary of ours. For financial reporting purposes, the assets acquired and liabilities assumed of LPC have been included in our Condensed Consolidated Balance Sheet as of September 30, 2024, and the results of operations and cash flows of LPC have been included in our Condensed Consolidated Statement of Operations and Cash Flows beginning as of the Acquisition Date. See Note 17 to our Condensed Consolidated Financial Statements. Unless otherwise indicated, references in this report to “we,” “us” or “our” refer to Kronos Worldwide, Inc. and its subsidiaries (NYSE: KRO) taken as a whole.

Accounts and other receivables,

Accounts and other receivables, net	9 Months Ended
Accounts and other receivables, net	Sep. 30, 2024
Accounts and other receivables, net
Accounts and other receivables, net	Note 2 - Accounts and other receivables, net: December 31, September 30, 2023 2024 (In millions) Trade receivables $ 273.6 $ 348.6 Recoverable VAT and other receivables 23.8 18.9 Receivables from affiliates, other: LPC 16.9 - Other .4 .8 Refundable income taxes 1.9 1.8 Allowance for doubtful accounts (4.1) (3.6) Total $ 312.5 $ 366.5

Inventories, net

Inventories, net	9 Months Ended
Inventories, net	Sep. 30, 2024
Inventories, net
Inventories, net	Note 3 - Inventories, net: December 31, September 30, 2023 2024 (In millions) Raw materials $ 188.3 $ 127.4 Work in process 30.8 41.0 Finished products 249.6 255.0 Supplies 95.9 125.2 Total $ 564.6 $ 548.6

Marketable securities

Marketable securities	9 Months Ended
Marketable securities	Sep. 30, 2024
Marketable securities
Marketable securities	Note 4 - Marketable securities: Our marketable securities consist of investments in the publicly-traded shares of our related party, Valhi. Our marketable securities are accounted for as available-for-sale securities, which are carried at fair value using quoted market prices in active markets for each marketable security and represent a Level 1 input within the fair value hierarchy. Unrealized gains or losses on equity securities are recognized in Other income (expense) - Marketable equity securities on our Condensed Consolidated Statements of Operations. Fair value measurement Market Cost Unrealized Marketable security level value basis gain (loss) (In millions) December 31, 2023: Valhi common stock 1 $ 2.2 $ 3.2 $ (1.0) September 30, 2024: Valhi common stock 1 $ 4.8 $ 3.2 $ 1.6 At December 31, 2023 and September 30, 2024, we held approximately 144,000 shares of Valhi’s common stock. At December 31, 2023 and September 30, 2024, the per share quoted market price of Valhi’s common stock was $15.19 and $33.37, respectively. The Valhi common stock we own is subject to the restrictions on resale pursuant to certain provisions of the Securities and Exchange Commission (SEC) Rule 144. In addition, as a majority-owned subsidiary of Valhi we cannot vote our shares of Valhi common stock under Delaware General Corporation Law, but we do receive dividends from Valhi on these shares when declared and paid.

Long-term debt

Long-term debt	9 Months Ended
Long-term debt	Sep. 30, 2024
Long-term debt
Long-term debt	Note 5 - Long-term debt: December 31, September 30, 2023 2024 (In millions) Kronos International, Inc. 9.50% Senior Secured Notes due 2029 $ - $ 391.7 Kronos International, Inc. 3.75% Senior Secured Notes due 2025 440.9 83.9 Subordinated, Unsecured Term Loan from Contran - 53.7 Revolving credit facility - 25.0 Total debt 440.9 554.3 Less current maturities - (83.9) Total long-term debt $ 440.9 $ 470.4 9.50% Senior Secured Notes due 2029 On July 30, 2024, KII issued an additional €75 million principal amount of 9.50% Senior Secured Notes due 2029 (the “Additional New Notes” and together with the New Notes the “9.50% Senior Secured Notes due 2029”). The Additional New Notes are additional notes to the existing €276.174 million aggregate principal amount of New Notes issued on February 12, 2024. The Additional New Notes were issued at a premium of 107.50% of their principal amount, plus accrued interest from February 12, 2024, resulting in net proceeds of approximately $90 million after fees and estimated expenses. The Additional New Notes are fungible with the New Notes, are treated as a single series with the New Notes and have the same terms as the New Notes, other than their date of issuance and issue price. The proceeds from the Additional New Notes were used to pay down borrowings under the $300 million global revolving credit facility (the “Global Revolver”). The 9.50% Senior Secured Notes due 2029: ● bear interest at 9.50% per annum, payable semi-annually on March 15 and September 15 of each year, payments began on September 15, 2024 ; ● have a maturity date of March 15, 2029. Prior to March 15, 2026, we may redeem some or all of the 9.50% Senior Secured Notes due 2029 at a price equal to 100% of the principal amount thereof, plus an applicable premium as of the date of the redemption as described in the indenture governing our 9.50% Senior Secured Notes due 2029 plus accrued and unpaid interest. On or after March 15, 2026, we may redeem the 9.50% Senior Secured Notes due 2029 at redemption prices ranging from 104.750% of the principal amount, declining to 100% on or after March 15, 2028, plus accrued and unpaid interest. In addition, on or before March 15, 2026, we may redeem up to 40% of the 9.50% Senior Secured Notes due 2029 with the net proceeds of certain public or private equity offerings at 109.50% of the principal amount, plus accrued and unpaid interest, provided that following the redemption at least 50% of the 9.50% Senior Secured Notes due 2029 remain outstanding . If we or our subsidiaries experience certain change of control events, as outlined in the indenture governing our 9.50% Senior Secured Notes due 2029 , we would be required to make an offer to purchase the 9.50% Senior Secured Notes due 2029 at 101% of the principal amount thereof, plus accrued and unpaid interest. We would also be required to make an offer to purchase a specified portion of the 9.50% Senior Secured Notes due 2029 at par value, plus accrued and unpaid interest, in the event that we and our subsidiaries generate a certain amount of net proceeds from the sale of assets outside the ordinary course of business, and such net proceeds are not otherwise used for specified purposes within a specified time period as described in the indenture governing our 9.50% Senior Secured Notes due 2029; ● are fully and unconditionally guaranteed, jointly and severally, on a senior secured basis by Kronos Worldwide, Inc. and each of our direct and indirect domestic, wholly-owned subsidiaries; ● are collateralized by a first priority lien on (i) 100% of the common stock or other ownership interests of each existing and future direct domestic subsidiary of KII and the guarantors, and (ii) 65% of the voting common stock or other ownership interests and 100% of the non-voting common stock or other ownership interests of each non-U.S. subsidiary that is directly owned by KII or any guarantor; ● contain a number of covenants and restrictions which, among other things, restrict our ability to incur or guarantee additional debt, incur liens, pay dividends or make other restricted payments, or merge or consolidate with, or sell or transfer substantially all of our assets to, another entity, and contain other provisions and restrictive covenants customary in lending transactions of this type (however, there are no ongoing financial maintenance covenants); and ● contain customary default provisions, including a default under any of our other indebtedness in excess of $50.0 million. At September 30, 2024, the carrying value of the 9.50% Senior Secured Notes due 2029 (€351.174 million aggregate principal amount outstanding plus €5.4 million of unamortized premium) is stated net of unamortized debt issuance costs of $7.1 million. As a result of the note exchange, in the first quarter of 2024 we recognized a non-cash pre-tax interest charge of $1.5 million included in interest expense related to the write-off of the deferred financing costs associated with the Old Notes. As of September 30, 2024, we have capitalized $7.9 million in debt issuance costs associated with the 9.50% Senior Secured Notes due 2029. 3.75% Senior Secured Notes due 2025 Subordinated, Unsecured Term Loan from Contran Revolving credit facility Available borrowings are based on formula-determined amounts of eligible trade receivables and inventories, as defined in the agreement, less any outstanding letters of credit issued under the Global Revolver. Borrowings by our Canadian, Belgian and German subsidiaries are limited to U.S. $35 million, €30 million and €60 million, respectively. Any amounts outstanding under the Global Revolver bear interest, at our option, at the applicable non-base rate (SOFR, adjusted CORRA or EURIBOR, depending on the currency of the borrowing) plus a margin ranging from 1.5% to 2.0% , or at the applicable base rate, as defined in the agreement, plus a margin ranging from .5% to 2.0% . U.S. Dollar or Canadian Dollar non-base rate loans, as well as Euro non-base rate and Euro base rate loans are subject to a 0.25% floor, plus the applicable margin. The Global Revolver is collateralized by, among other things, a first priority lien on the borrowers’ trade receivables and inventories. The facility contains a number of covenants and restrictions customary in lending transactions of this type which, among other things, restrict the borrowers’ ability to incur additional debt, incur liens, pay additional dividends or merge or consolidate with, or sell or transfer all or substantially all of their assets to another entity and, under certain conditions, requires the maintenance of a fixed charge coverage ratio, as defined in the agreement, of at least 1.0 to 1.0. Other

Accounts payable and accrued li

Accounts payable and accrued liabilities	9 Months Ended
Accounts payable and accrued liabilities	Sep. 30, 2024
Accounts payable and accrued liabilities
Accounts payable and accrued liabilities	Note 6 - Accounts payable and accrued liabilities: December 31, September 30, 2023 2024 (In millions) Accounts payable $ 218.7 $ 155.2 Accrued sales discounts and rebates 22.5 23.6 Employee benefits 24.7 34.6 Payables to affiliates: LPC 19.9 - Income taxes payable to Valhi 10.8 12.9 Other .6 - Accrued interest 5.0 2.0 Operating lease liabilities 3.9 3.7 Other 49.3 64.7 Total $ 355.4 $ 296.7

Other noncurrent liabilities

Other noncurrent liabilities	9 Months Ended
Other noncurrent liabilities	Sep. 30, 2024
Other noncurrent liabilities
Other noncurrent liabilities	Note 7 - Other noncurrent liabilities: December 31, September 30, 2023 2024 (In millions) Asset retirement obligations $ 7.2 $ 14.5 Accrued postretirement benefits 6.4 6.3 Employee benefits 4.9 4.7 Earn-out liability - 4.2 Other 3.3 2.8 Total $ 21.8 $ 32.5 See Notes 13 and 17 to our Condensed Consolidated Financial Statements for additional details related to the acquisition earn-out liability.

Revenue recognition

Revenue recognition	9 Months Ended
Revenue recognition	Sep. 30, 2024
Revenue recognition
Revenue recognition	Note 8 - Revenue recognition: The following table disaggregates our net sales by place of manufacture (point of origin) and to the location of the customer (point of destination), which are the categories that depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. Three months ended Nine months ended September 30, September 30, 2023 2024 2023 2024 (In millions) Net sales - point of origin: United States $ 250.6 $ 290.0 $ 739.8 $ 810.6 Germany 182.3 217.4 561.9 645.8 Canada 93.0 90.9 267.8 277.8 Norway 40.7 66.3 187.9 215.0 Belgium 49.3 64.6 163.6 195.2 Eliminations (219.0) (244.5) (654.6) (680.4) Total $ 396.9 $ 484.7 $ 1,266.4 $ 1,464.0 Net sales - point of destination: Europe $ 179.9 $ 228.1 $ 580.0 $ 665.6 North America 165.1 179.8 466.7 528.3 Other 51.9 76.8 219.7 270.1 Total $ 396.9 $ 484.7 $ 1,266.4 $ 1,464.0

Employee benefit plans

Employee benefit plans	9 Months Ended
Employee benefit plans	Sep. 30, 2024
Employee benefit plans
Employee benefit plans	Note 9 - Employee benefit plans: The components of net periodic defined benefit pension cost are presented in the table below. Three months ended Nine months ended September 30, September 30, 2023 2024 2023 2024 (In millions) Net periodic pension cost (income): Service cost $ 1.6 $ 1.6 $ 4.7 $ 4.9 Interest cost 5.2 4.9 15.4 14.8 Expected return on plan assets (4.8) (5.2) (14.4) (15.7) Recognized actuarial losses .6 .7 1.8 1.9 Settlements - - 1.3 - Total $ 2.6 $ 2.0 $ 8.8 $ 5.9 In the second quarter of 2023, we completed a termination and buy-out of our UK pension plan resulting in a $1.3 million settlement loss.

Income taxes

Income taxes	9 Months Ended
Income taxes	Sep. 30, 2024
Income taxes
Income taxes	Note 10 - Income taxes: Three months ended Nine months ended September 30, September 30, 2023 2024 2023 2024 (In millions) Expected tax expense (benefit), at U.S. federal statutory $ (6.1) $ 19.9 $ (13.3) $ 28.2 Non-U.S. tax rates (2.0) .2 (4.6) .3 Incremental net tax benefit on earnings and losses of U.S. (1.2) (2.6) (2.4) (5.3) Valuation allowance, net .4 2.8 1.2 6.4 Global intangible low-tax income, net (.2) 1.2 (.1) 2.8 Nondeductible expenses .2 .3 .6 1.0 Other, net .2 .9 (1.1) 1.3 Income tax expense (benefit) $ (8.7) $ 22.7 $ (19.7) $ 34.7 Comprehensive provision (benefit) for income taxes allocable to: Net income (loss) $ (8.7) $ 22.7 $ (19.7) $ 34.7 Other comprehensive income (loss): Pension plans .1 .1 .7 .4 OPEB plans (.1) - (.1) - Total $ (8.7) $ 22.8 $ (19.1) $ 35.1 The amount shown in the preceding table of our income tax rate reconciliation for non-U.S. tax rates represents the result determined by multiplying the pre-tax earnings or losses of each of our non-U.S. subsidiaries by the difference between the applicable statutory income tax rate for each non-U.S. jurisdiction and the U.S. federal statutory tax rate. The amount shown on such table for incremental net tax benefit on earnings and losses of U.S. and non-U.S. companies includes, as applicable, (i) deferred income taxes (or deferred income tax benefits) associated with the current-year earnings (losses) of all of our non-U.S. subsidiaries and (ii) current U.S. income taxes (or current income tax benefit), including U.S. personal holding company tax, as applicable, attributable to current-year income (losses) of one of our non-U.S. subsidiaries, which subsidiary is treated as a dual resident for U.S. income tax purposes, to the extent the current-year income (losses) of such subsidiary is subject to U.S. income tax under the U.S. dual-resident provisions of the Internal Revenue Code. Tax authorities are examining certain of our U.S. and non-U.S. tax returns and may propose tax deficiencies, including penalties and interest. We believe we have adequate accruals for additional taxes and related interest expense which could ultimately result from tax examinations. We believe the ultimate disposition of tax examinations should not have a material adverse effect on our consolidated financial position, results of operations or liquidity. We currently estimate that our unrecognized tax benefits will not change materially during the next twelve months.

Stockholders' equity

Stockholders' equity	9 Months Ended
Stockholders' equity	Sep. 30, 2024
Stockholders' equity
Stockholders' equity	Note 11 - Stockholders’ equity: Changes in accumulated other comprehensive loss are presented in the table below. See Note 9 for discussion of our defined benefit pension plans. Three months ended Nine months ended September 30, September 30, 2023 2024 2023 2024 (In millions) Accumulated other comprehensive loss, net of tax: Currency translation: Balance at beginning of period $ (281.9) $ (284.2) $ (269.2) $ (265.5) Other comprehensive income (loss) (1.4) 6.3 (14.1) (12.4) Balance at end of period $ (283.3) $ (277.9) $ (283.3) $ (277.9) Defined benefit pension plans: Balance at beginning of period $ (61.1) $ (75.0) $ (63.1) $ (76.0) Other comprehensive income - amortization .4 .5 1.5 1.5 Settlement loss - - .9 - Balance at end of period $ (60.7) $ (74.5) $ (60.7) $ (74.5) OPEB plans: Balance at beginning of period $ .7 $ .4 $ .8 $ .4 Other comprehensive loss - amortization (.1) - (.2) - Balance at end of period $ .6 $ .4 $ .6 $ .4 Total accumulated other comprehensive loss: Balance at beginning of period $ (342.3) $ (358.8) $ (331.5) $ (341.1) Other comprehensive income (loss) (1.1) 6.8 (11.9) (10.9) Balance at end of period $ (343.4) $ (352.0) $ (343.4) $ (352.0) Our board of directors has previously authorized the repurchase of up to 2.0 million shares of our common stock in open market transactions, including block purchases, or in privately-negotiated transactions at unspecified prices and over an unspecified period of time. We may repurchase our common stock from time to time as market conditions permit. The stock repurchase program does not include specific price targets or timetables and may be suspended at any time. Depending on market conditions, we may terminate the program prior to its completion. We use cash on hand or other sources of liquidity to acquire the shares. Repurchased shares are added to our treasury and subsequently cancelled upon approval of the board of directors. During the first and second quarters of 2023, we acquired 159,796 and 154,018 shares of our common stock, respectively, in market transactions for an aggregate purchase price of $2.8 million. Also, during the first and second quarters of 2023 we cancelled 133,897 and 323,814 shares, respectively, previously held as treasury stock. At September 30, 2024, 1,017,518 shares are available for repurchase under this stock repurchase program.

Commitments and contingencies

Commitments and contingencies	9 Months Ended
Commitments and contingencies	Sep. 30, 2024
Commitments and contingencies.
Commitments and contingencies	Note 12 - Commitments and contingencies: We are involved in various environmental, contractual, product liability, patent (or intellectual property), employment and other claims and disputes incidental to our business. At least quarterly our management discusses and evaluates the status of any pending litigation to which we are a party. The factors considered in such evaluation include, among other things, the nature of such pending cases, the status of such pending cases, the advice of legal counsel and our experience in similar cases (if any). Based on such evaluation, we make a determination as to whether we believe (i) it is probable a loss has been incurred, and if so if the amount of such loss (or a range of loss) is reasonably estimable, or (ii) it is reasonably possible but not probable a loss has been incurred, and if so if the amount of such loss (or a range of loss) is reasonably estimable, or (iii) the probability a loss has been incurred is remote. We have not accrued any amounts for litigation matters because it is not reasonably possible we have incurred a loss that would be material to our consolidated financial statements, results of operations or liquidity.

Financial instruments

Financial instruments	9 Months Ended
Financial instruments	Sep. 30, 2024
Financial instruments
Financial instruments	Note 13 - Financial instruments: See Note 4 for information on how we determine fair value of our marketable securities. See Note 17 for information on how we determine fair value of our acquisition earn-out liability. The fair value measurement is based on significant inputs not observable in the market and therefore represents a Level 3 measurement as defined in ASC 820. There has been no activity subsequent to the Acquisition Date impacting the fair value of the acquisition earn-out liability. The fair value of the acquisition earn-out liability is included in “Other noncurrent liabilities” on the Condensed Consolidated Balance Sheet. See Note 7. The following table presents the financial instruments that are not carried at fair value but which require fair value disclosure: December 31, 2023 September 30, 2024 Carrying Fair Carrying Fair amount value amount value (In millions) Cash, cash equivalents and restricted cash $ 202.1 $ 202.1 $ 102.9 $ 102.9 Long-term debt: Fixed rate 9.50% Senior Secured Notes due 2029 - - 391.7 427.9 Fixed rate 3.75% Senior Secured Notes due 2025 440.9 424.5 83.9 83.3 Revolving credit facility - - 25.0 25.0 At September 30, 2024, the estimated market price of our 9.50% Senior Secured Notes due 2029 was €1,089 per €1,000 principal amount, and the estimated market price of our 3.75% Senior Secured Notes due 2025 was €993 per €1,000 principal amount. The fair values of our Senior Secured Notes were based on quoted market prices; however, these quoted market prices represented Level 2 inputs because the markets in which the Senior Secured Notes trade were not active. Due to the variable interest rate, the carrying amount of our revolving credit facility is deemed to approximate fair value.

Other operating income (expense

Other operating income (expense), net	9 Months Ended
Other operating income (expense), net	Sep. 30, 2024
Other operating income (expense), net
Other operating income (expense), net	Note 14 - Other operating income (expense), net: On August 24, 2020, LPC temporarily halted production due to Hurricane Laura. Although storm damage to core processing facilities was not extensive, a variety of factors, including loss of utilities and limited access and availability of employees and raw materials, prevented the resumption of operations until September 25, 2020. The majority of our losses from property damage and our share of LPC’s lost production and other costs resulting from the disruption of operations, were covered by insurance. We recognized an aggregate gain of $2.5 million ( $1.7 million, $.5 million and $.3 million in the first, second and third quarters of 2023, respectively), which is included in other operating expense, net on our Condensed Consolidated Statement of Operations.

Recent accounting pronouncement

Recent accounting pronouncements	9 Months Ended
Recent accounting pronouncements	Sep. 30, 2024
Recent accounting pronouncements
Recent accounting pronouncements	Note 15 - Recent accounting pronouncements: In November 2023, the Financial Accounting Standards Board (FASB) issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures . The ASU requires public companies to disclose significant segment expenses and other segment items on an annual and interim basis. The ASU also mandates public companies to provide all annual segment disclosures currently required annually in interim periods. Public entities with a single reportable segment are required to provide the new disclosures and all disclosures required under ASC 280. Public companies will also be required to disclose the title and position of the chief operating decision maker (CODM) and explain how the CODM uses the reported measure of segment profit or loss in assessing segment performance and allocation of resources. The ASU is effective for us beginning with our 2024 Annual Report, and for interim reporting, in the first quarter of 2025, with retrospective application required. We are in the process of evaluating the additional disclosure requirements across all segments. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures . The ASU requires additional annual disclosure and disaggregation for the rate reconciliation, income taxes paid and income tax expense by federal, state and foreign tax jurisdictions. In addition, the standard increases the disclosure requirements for items included in the rate reconciliation that meet a quantitative threshold. The ASU is effective for us beginning with our 2025 Annual Report. The ASU may be applied prospectively; however, entities have the option to apply it retrospectively. We are in the process of evaluating the additional disclosure requirements.

Restructuring costs

Restructuring costs	9 Months Ended
Restructuring costs	Sep. 30, 2024
Restructuring costs
Restructuring costs	Note 16 - Restructuring costs: In response to the extended period of reduced demand in 2023, we took measures to reduce our operating costs and improve our long-term cost structure such as the implementation of certain voluntary and involuntary workforce reductions during the third quarter of 2023 that primarily impacted our European operations. A substantial portion of our workforce reductions were accomplished through voluntary programs, for which eligible workforce reduction costs are recognized at the time both the employee and employer are irrevocably committed to the terms of the separation. These workforce reductions impacted approximately 100 employees. We recognized a total of approximately $6 million in charges e sec a l f o f h e y a r. In the third quarter of 2024, we closed our sulfate process line at our plant in Varennes, Canada. As a result of the sulfate process line closure, we recognized charges to Cost of sales in the first nine months of 2024 of approximately A summary of the activity in our accrued restructuring costs for the first nine months of 2024 is shown in the table below: Amount (In millions) Accrued workforce reduction costs at December 31, 2023 $ 5.0 Workforce reduction costs accrued 2.0 Workforce reduction costs paid (4.9) Currency translation adjustments, net (.1) Accrued workforce reduction costs at September 30, 2024 $ 2.0 Amounts recognized in the balance sheet: Current liability $ 2.0 Noncurrent liability - Total $ 2.0

Acquisition of Remaining Joint

Acquisition of Remaining Joint Venture Interest in LPC	9 Months Ended
Acquisition of Remaining Joint Venture Interest in LPC	Sep. 30, 2024
Acquisition of Remaining Joint Venture Interest in LPC
Acquisition of Remaining Joint Venture Interest in LPC	Note 17 - Acquisition of Remaining Joint Venture Interest in LPC: As discussed in Note 1, we acquired the 50% joint venture interest in LPC for consideration of $185 million less a working capital adjustment of $11.0 million. An additional earn-out payment of up to $15 million may be required if our aggregate consolidated net income before interest expense, income taxes and depreciation and amortization expense, or EBITDA, during a two-year period comprising calendar years 2025 and 2026 exceed certain thresholds as described below. Prior to the acquisition, we held a 50% joint venture interest in LPC and LPC was operated as a joint venture between us and Venator. We accounted for the acquisition of LPC’s interest as a business combination and, as a result of obtaining full control, LPC became a wholly-owned subsidiary of ours. Obtaining control of LPC and its estimated additional 78,000 metric tons annually of TiO 2 2 For financial reporting purposes, the assets acquired and liabilities assumed of LPC have been included in our Condensed Consolidated Balance Sheet as of September 30, 2024, and the results of operations and cash flows of LPC have been included in our Condensed Consolidated Statement of Operations and Cash flows beginning as of the Acquisition Date. We incurred $2.2 million of transaction costs in connection with the acquisition. These costs were primarily associated with legal and professional services and were expensed in accordance with ASC 805 and are included in “Selling, general and administrative expense” in our Condensed Consolidated Statement of Operations. The potential earn-out payment of up to $15 million is based on our aggregate consolidated EBITDA tiers for 2025 and 2026 of $650 million and $730 million, with $5 million of the earn-out payable if we achieve $650 million in aggregate consolidated EBITDA, and a maximum of $15 million payable if aggregate EBITDA is $730 million or greater for the period. If we achieve aggregated consolidated EBITDA between $650 million and $730 million, the payment of the additional $10 million is prorated between the two targets. The earn-out is payable at the earliest in April 2027. The estimated fair value of the earn-out at the Acquisition Date is $4.2 million and was determined using a weighted probability of potential outcomes based on estimated future EBITDA and volatility factors, among other variables and estimates. The earn-out liability is included in “Other noncurrent liabilities” on the Condensed Consolidated Balance Sheet and is part of the line item captioned “Earn-out liability” in Note 7. The fair value measurement is based on significant inputs not observable in the market and therefore represents a Level 3 measurement as defined in ASC 820. The earn-out liability will be re-measured at fair value on a recurring basis and the change to the liability, if any, would be recorded in “Other income (expense)” in our Condensed Consolidated Statements of Operations. See Note 13 to our Condensed Consolidated Financial Statements. We remeasured our existing ownership interest in LPC to its estimated fair value at the Acquisition Date in accordance with ASC 805-10-25, for a business combination achieved in stages (because we previously had an ownership interest in LPC). As a result of such remeasurement, we recognized a pre-tax gain of approximately $64.5 million in the third quarter of 2024, representing the difference between the $178.2 million estimated fair value of our existing ownership interest in LPC at the Acquisition Date and its aggregate $113.7 million carrying value at the Acquisition Date. Such pre-tax gain is disclosed as “Gain on remeasurement of investment in TiO 2 The following table summarizes the aggregate fair value of the consideration transferred to gain control of LPC, the current estimate for the fair value of our existing ownership interest in LPC and the amounts assigned to the identifiable assets acquired and liabilities assumed at the Acquisition Date. The estimated purchase price allocation is based upon management’s estimate of the fair value of the acquired assets and assumed liabilities using independent third-party appraiser valuation techniques including income, cost, and market approaches. The total consideration was allocated to the assets acquired and liabilities assumed, with the excess of the consideration over the estimated fair value of the net assets acquired recorded as goodwill. Amount (In millions) Consideration: Cash consideration $ 185.0 Working capital adjustment (11.0) Earn-out liability 4.2 Total fair value of consideration 178.2 Fair value of investment in TiO 2 178.2 Total $ 356.4 Allocation of purchase price to identifiable Cash and cash equivalents $ 21.3 Restricted cash 1.3 Accounts and other receivables, net .2 Inventories, net 82.0 Prepaid expenses and other .6 Other assets 10.7 Property and equipment 268.5 Accounts payable and accrued liabilities (21.7) Other noncurrent liabilities (6.4) Deferred tax liability (2.7) Total net identifiable assets acquired 353.8 Goodwill 2.6 Total $ 356.4 Property and equipment will be depreciated over useful lives of 5 years to 20 years. Goodwill is related to the benefits expected as a result of the acquisition, and of the $2.6 million recorded as goodwill, $.1 million is expected to be deductible for tax purposes. As noted above, prior to the Acquisition Date we and Venator operated LPC as a manufacturing joint venture on a break-even basis. Under the terms of the operating agreement, Kronos’ purchase price of TiO 2

Summary of significant accounti

Summary of significant accounting policies (Policies)	9 Months Ended
Summary of significant accounting policies (Policies)	Sep. 30, 2024
Organization and basis of presentation
Organization	Organization Thomas C. Connelly (the husband of Ms. Simmons’ late sister), ) required to vote their shares of Contran voting stock in the same manner as Ms. Simmons.
Basis of Presentation	Basis of presentation Effective July 16, 2024 (“Acquisition Date”), we acquired the 50% joint venture interest in Louisiana Pigment Company, L.P. (“LPC”) previously held by Venator Investments, Ltd. (“Venator”). Prior to the acquisition, we held a 50% joint venture interest in LPC and LPC was operated as a manufacturing joint venture between us and Venator. Following the acquisition, LPC became a wholly-owned subsidiary of ours. For financial reporting purposes, the assets acquired and liabilities assumed of LPC have been included in our Condensed Consolidated Balance Sheet as of September 30, 2024, and the results of operations and cash flows of LPC have been included in our Condensed Consolidated Statement of Operations and Cash Flows beginning as of the Acquisition Date. See Note 17 to our Condensed Consolidated Financial Statements. Unless otherwise indicated, references in this report to “we,” “us” or “our” refer to Kronos Worldwide, Inc. and its subsidiaries (NYSE: KRO) taken as a whole.
Commitments and Contingencies	We are involved in various environmental, contractual, product liability, patent (or intellectual property), employment and other claims and disputes incidental to our business. At least quarterly our management discusses and evaluates the status of any pending litigation to which we are a party. The factors considered in such evaluation include, among other things, the nature of such pending cases, the status of such pending cases, the advice of legal counsel and our experience in similar cases (if any). Based on such evaluation, we make a determination as to whether we believe (i) it is probable a loss has been incurred, and if so if the amount of such loss (or a range of loss) is reasonably estimable, or (ii) it is reasonably possible but not probable a loss has been incurred, and if so if the amount of such loss (or a range of loss) is reasonably estimable, or (iii) the probability a loss has been incurred is remote. We have not accrued any amounts for litigation matters because it is not reasonably possible we have incurred a loss that would be material to our consolidated financial statements, results of operations or liquidity.

Accounts and other receivable_2

Accounts and other receivables, net (Tables)	9 Months Ended
Accounts and other receivables, net (Tables)	Sep. 30, 2024
Accounts and other receivables, net
Accounts and other receivables, net	December 31, September 30, 2023 2024 (In millions) Trade receivables $ 273.6 $ 348.6 Recoverable VAT and other receivables 23.8 18.9 Receivables from affiliates, other: LPC 16.9 - Other .4 .8 Refundable income taxes 1.9 1.8 Allowance for doubtful accounts (4.1) (3.6) Total $ 312.5 $ 366.5

Inventories, net (Tables)

Inventories, net (Tables)	9 Months Ended
Inventories, net (Tables)	Sep. 30, 2024
Inventories, net
Schedule of Inventories, Net	December 31, September 30, 2023 2024 (In millions) Raw materials $ 188.3 $ 127.4 Work in process 30.8 41.0 Finished products 249.6 255.0 Supplies 95.9 125.2 Total $ 564.6 $ 548.6

Marketable securities (Tables)

Marketable securities (Tables)	9 Months Ended
Marketable securities (Tables)	Sep. 30, 2024
Marketable securities
Schedule of classification of marketable securities	Fair value measurement Market Cost Unrealized Marketable security level value basis gain (loss) (In millions) December 31, 2023: Valhi common stock 1 $ 2.2 $ 3.2 $ (1.0) September 30, 2024: Valhi common stock 1 $ 4.8 $ 3.2 $ 1.6

Long-term debt (Tables)

Long-term debt (Tables)	9 Months Ended
Long-term debt (Tables)	Sep. 30, 2024
Long-term debt
Components of Long Term Debt	December 31, September 30, 2023 2024 (In millions) Kronos International, Inc. 9.50% Senior Secured Notes due 2029 $ - $ 391.7 Kronos International, Inc. 3.75% Senior Secured Notes due 2025 440.9 83.9 Subordinated, Unsecured Term Loan from Contran - 53.7 Revolving credit facility - 25.0 Total debt 440.9 554.3 Less current maturities - (83.9) Total long-term debt $ 440.9 $ 470.4

Accounts payable and accrued _2

Accounts payable and accrued liabilities (Tables)	9 Months Ended
Accounts payable and accrued liabilities (Tables)	Sep. 30, 2024
Accounts payable and accrued liabilities
Components of Accounts Payable and Accrued Liabilities	December 31, September 30, 2023 2024 (In millions) Accounts payable $ 218.7 $ 155.2 Accrued sales discounts and rebates 22.5 23.6 Employee benefits 24.7 34.6 Payables to affiliates: LPC 19.9 - Income taxes payable to Valhi 10.8 12.9 Other .6 - Accrued interest 5.0 2.0 Operating lease liabilities 3.9 3.7 Other 49.3 64.7 Total $ 355.4 $ 296.7

Other noncurrent liabilities (T

Other noncurrent liabilities (Tables)	9 Months Ended
Other noncurrent liabilities (Tables)	Sep. 30, 2024
Other noncurrent liabilities
Components of Other noncurrent liabilities	December 31, September 30, 2023 2024 (In millions) Asset retirement obligations $ 7.2 $ 14.5 Accrued postretirement benefits 6.4 6.3 Employee benefits 4.9 4.7 Earn-out liability - 4.2 Other 3.3 2.8 Total $ 21.8 $ 32.5

Revenue recognition (Tables)

Revenue recognition (Tables)	9 Months Ended
Revenue recognition (Tables)	Sep. 30, 2024
Revenue recognition
Disaggregation of Net Sales by Place of Manufacture and to Location of Customer	Three months ended Nine months ended September 30, September 30, 2023 2024 2023 2024 (In millions) Net sales - point of origin: United States $ 250.6 $ 290.0 $ 739.8 $ 810.6 Germany 182.3 217.4 561.9 645.8 Canada 93.0 90.9 267.8 277.8 Norway 40.7 66.3 187.9 215.0 Belgium 49.3 64.6 163.6 195.2 Eliminations (219.0) (244.5) (654.6) (680.4) Total $ 396.9 $ 484.7 $ 1,266.4 $ 1,464.0 Net sales - point of destination: Europe $ 179.9 $ 228.1 $ 580.0 $ 665.6 North America 165.1 179.8 466.7 528.3 Other 51.9 76.8 219.7 270.1 Total $ 396.9 $ 484.7 $ 1,266.4 $ 1,464.0

Employee benefit plans (Tables)

Employee benefit plans (Tables)	9 Months Ended
Employee benefit plans (Tables)	Sep. 30, 2024
Employee benefit plans
Schedule of components of net periodic benefit cost	Three months ended Nine months ended September 30, September 30, 2023 2024 2023 2024 (In millions) Net periodic pension cost (income): Service cost $ 1.6 $ 1.6 $ 4.7 $ 4.9 Interest cost 5.2 4.9 15.4 14.8 Expected return on plan assets (4.8) (5.2) (14.4) (15.7) Recognized actuarial losses .6 .7 1.8 1.9 Settlements - - 1.3 - Total $ 2.6 $ 2.0 $ 8.8 $ 5.9

Income taxes (Tables)

Income taxes (Tables)	9 Months Ended
Income taxes (Tables)	Sep. 30, 2024
Income taxes
Schedule of components of income taxes and comprehensive provision for income taxes allocation	Three months ended Nine months ended September 30, September 30, 2023 2024 2023 2024 (In millions) Expected tax expense (benefit), at U.S. federal statutory $ (6.1) $ 19.9 $ (13.3) $ 28.2 Non-U.S. tax rates (2.0) .2 (4.6) .3 Incremental net tax benefit on earnings and losses of U.S. (1.2) (2.6) (2.4) (5.3) Valuation allowance, net .4 2.8 1.2 6.4 Global intangible low-tax income, net (.2) 1.2 (.1) 2.8 Nondeductible expenses .2 .3 .6 1.0 Other, net .2 .9 (1.1) 1.3 Income tax expense (benefit) $ (8.7) $ 22.7 $ (19.7) $ 34.7 Comprehensive provision (benefit) for income taxes allocable to: Net income (loss) $ (8.7) $ 22.7 $ (19.7) $ 34.7 Other comprehensive income (loss): Pension plans .1 .1 .7 .4 OPEB plans (.1) - (.1) - Total $ (8.7) $ 22.8 $ (19.1) $ 35.1

Stockholders' equity (Tables)

Stockholders' equity (Tables)	9 Months Ended
Stockholders' equity (Tables)	Sep. 30, 2024
Stockholders' equity
Schedule of changes in accumulated other comprehensive loss	Three months ended Nine months ended September 30, September 30, 2023 2024 2023 2024 (In millions) Accumulated other comprehensive loss, net of tax: Currency translation: Balance at beginning of period $ (281.9) $ (284.2) $ (269.2) $ (265.5) Other comprehensive income (loss) (1.4) 6.3 (14.1) (12.4) Balance at end of period $ (283.3) $ (277.9) $ (283.3) $ (277.9) Defined benefit pension plans: Balance at beginning of period $ (61.1) $ (75.0) $ (63.1) $ (76.0) Other comprehensive income - amortization .4 .5 1.5 1.5 Settlement loss - - .9 - Balance at end of period $ (60.7) $ (74.5) $ (60.7) $ (74.5) OPEB plans: Balance at beginning of period $ .7 $ .4 $ .8 $ .4 Other comprehensive loss - amortization (.1) - (.2) - Balance at end of period $ .6 $ .4 $ .6 $ .4 Total accumulated other comprehensive loss: Balance at beginning of period $ (342.3) $ (358.8) $ (331.5) $ (341.1) Other comprehensive income (loss) (1.1) 6.8 (11.9) (10.9) Balance at end of period $ (343.4) $ (352.0) $ (343.4) $ (352.0)

Financial instruments (Tables)

Financial instruments (Tables)	9 Months Ended
Financial instruments (Tables)	Sep. 30, 2024
Financial instruments
Schedule of financial instruments that are not carried at fair value but which require fair value disclosure	December 31, 2023 September 30, 2024 Carrying Fair Carrying Fair amount value amount value (In millions) Cash, cash equivalents and restricted cash $ 202.1 $ 202.1 $ 102.9 $ 102.9 Long-term debt: Fixed rate 9.50% Senior Secured Notes due 2029 - - 391.7 427.9 Fixed rate 3.75% Senior Secured Notes due 2025 440.9 424.5 83.9 83.3 Revolving credit facility - - 25.0 25.0

Restructuring costs (Tables)

Restructuring costs (Tables)	9 Months Ended
Restructuring costs (Tables)	Sep. 30, 2024
Restructuring costs
Schedule of accrued workforce reduction costs	Amount (In millions) Accrued workforce reduction costs at December 31, 2023 $ 5.0 Workforce reduction costs accrued 2.0 Workforce reduction costs paid (4.9) Currency translation adjustments, net (.1) Accrued workforce reduction costs at September 30, 2024 $ 2.0 Amounts recognized in the balance sheet: Current liability $ 2.0 Noncurrent liability - Total $ 2.0

Acquisition of Remaining Join_2

Acquisition of Remaining Joint Venture Interest in LPC (Tables)	9 Months Ended
	Sep. 30, 2024
Acquisition of Remaining Joint Venture Interest in LPC
Schedule of assets acquired and liabilities assumed	Amount (In millions) Consideration: Cash consideration $ 185.0 Working capital adjustment (11.0) Earn-out liability 4.2 Total fair value of consideration 178.2 Fair value of investment in TiO 2 178.2 Total $ 356.4 Allocation of purchase price to identifiable Cash and cash equivalents $ 21.3 Restricted cash 1.3 Accounts and other receivables, net .2 Inventories, net 82.0 Prepaid expenses and other .6 Other assets 10.7 Property and equipment 268.5 Accounts payable and accrued liabilities (21.7) Other noncurrent liabilities (6.4) Deferred tax liability (2.7) Total net identifiable assets acquired 353.8 Goodwill 2.6 Total $ 356.4

Organization and basis of pre_2

Organization and basis of presentation - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2024	Jul. 16, 2024	Jul. 15, 2024
Louisiana Pigment Company (LPC)
Organization And Basis Of Presentation [Line Items]
Percentage acquired		50%
Percentage held through wholly-owned subsidiary			50%
Valhi Inc \| Parent Company
Organization And Basis Of Presentation [Line Items]
Parent company ownership interest	50%
Valhi Inc \| NL Industries Inc.
Organization And Basis Of Presentation [Line Items]
Ownership percentage in company	83%
NL Industries Inc. \| Parent Company
Organization And Basis Of Presentation [Line Items]
Parent company ownership interest	31%
Contran
Organization And Basis Of Presentation [Line Items]
Controlling interest description	Consequently, at September 30, 2024, Ms. Simmons and the Family Trust may be deemed to control Contran, and therefore may be deemed to indirectly control the wholly-owned subsidiary of Contran, Valhi, NL and us.
Contran \| Valhi Inc
Organization And Basis Of Presentation [Line Items]
Ownership percentage of parent company held by related party	91%

Accounts and other receivable_3

Accounts and other receivables, net - Accounts and Other Receivables, Net (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Accounts Notes And Loans Receivable [Line Items]
Allowance for doubtful accounts	$ (3.6)	$ (4.1)
Total	366.5	312.5
Trade receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts and other receivables	348.6	273.6
Recoverable VAT and other receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts and other receivables	18.9	23.8
Refundable income taxes
Accounts Notes And Loans Receivable [Line Items]
Refundable income taxes	1.8	1.9
Louisiana Pigment Company (LPC) \| Trade Items
Accounts Notes And Loans Receivable [Line Items]
Receivables from affiliates		16.9
Other Affiliates \| Other
Accounts Notes And Loans Receivable [Line Items]
Receivables from affiliates	$ 0.8	$ 0.4

Inventories, net - Schedule of

Inventories, net - Schedule of Inventories, Net (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Inventories, net
Raw materials	$ 127.4	$ 188.3
Work in process	41	30.8
Finished products	255	249.6
Supplies	125.2	95.9
Total	$ 548.6	$ 564.6

Marketable Securities - Classif

Marketable Securities - Classification of marketable securities (Detail) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Marketable securities
Market value	$ 4.8	$ 2.2
Level 1 \| Common stock \| Valhi
Marketable securities
Market value	4.8	2.2
Cost basis	3.2	3.2
Unrealized gain (loss)	$ 1.6	$ (1)

Marketable Securities - Additio

Marketable Securities - Additional Information (Detail) - Valhi Inc - Common stock - $ / shares	Sep. 30, 2024	Dec. 31, 2023
Marketable securities
Investments in publicly-traded shares (in shares)	144,000	144,000
Quoted market price of per share (in dollars per share)	$ 33.37	$ 15.19

Long-term debt - Components of

Long-term debt - Components of Long-Term Debt (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Long-term debt
Revolving credit facility	$ 25
Total debt	554.3	$ 440.9
Less current maturities	(83.9)
Total long-term debt	470.4	440.9
Subordinated, Unsecured Term Loan from Contran
Long-term debt
Subordinated debt	53.7
Kronos International, Inc \| 9.50% Senior Secured Notes due 2029
Long-term debt
Kronos International, Inc.	391.7
Kronos International, Inc \| 3.75% Senior Secured Notes due 2025
Long-term debt
Kronos International, Inc.	$ 83.9	$ 440.9

Long-term debt - Senior Notes -

Long-term debt - Senior Notes - Additional Information (Detail) $ in Millions				3 Months Ended	9 Months Ended
	Jul. 30, 2024 USD ($)	Feb. 12, 2024 USD ($)	Feb. 12, 2024 EUR (€)	Mar. 31, 2024 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2024 EUR (€)	Aug. 31, 2024	Jul. 30, 2024 EUR (€)	Feb. 12, 2024 EUR (€)	Dec. 31, 2023 USD ($)
Long-term debt
Debt instrument interest rate					9.50%	9.50%
Unamortized premium \| €						€ 5,400,000
Senior Notes
Long-term debt
Minimum amount of debt default for using customary default provisions \| $		$ 50
3.75% Senior Secured Notes due 2025
Long-term debt
Debt instrument principal amount \| €									€ 325,000,000
Debt instrument interest rate					3.75%	3.75%				3.75%
Interest expense \| $				$ 1.5
Cash consideration to be paid for Old Note holders		$ 52.6	€ 48,750,000
Principal amount of old note exchange for new note \| €									1,000
Principal amount of New Note executed for each €1,000 principal of old note \| €									150
9.50% Senior Secured Notes due 2029
Long-term debt
Debt instrument principal amount \| €						€ 351,174,000		€ 75,000,000	€ 276,174,000
Debt instrument interest rate		9.50%			9.50%	9.50%		9.50%	9.50%	9.50%
Debt instrument, redemption price percentage		100%	100%
Fees and estimated expenses \| $	$ 90
Debt instrument, premium on percentage								107.50%
Debt instrument redemption price percent if experience certain specified change of control events		101%	101%
Unamortized debt issuance costs \| $					$ 7.1
Debt issuance costs \| $					$ 7.9
Principal amount of New Note executed for each €1,000 principal of old note \| €									€ 850
Remaining outstanding \| €									75,000,000
9.50% Senior Secured Notes due 2029 \| Global Revolver
Long-term debt
Repayments of lines of credit \| $	$ 300
9.50% Senior Secured Notes due 2029 \| On or After March 15, 2026
Long-term debt
Debt instrument, redemption price percentage		104.75%	104.75%
9.50% Senior Secured Notes due 2029 \| On or After March 15, 2026 \| Minimum
Long-term debt
Debt instrument, redemption price percentage		100%	100%
9.50% Senior Secured Notes due 2029 \| On or Before March 15, 2026
Long-term debt
Debt instrument, percentage of debt that may be redeemed		40%	40%
Private equity offerings		109.50%	109.50%
Redemption percentage		50%	50%
Subordinated, unsecured term loan
Long-term debt
Debt instrument principal amount		$ 53.7							€ 50,000,000
Debt instrument interest rate		11.50%					9.54%		11.50%
Kronos International, Inc \| 3.75% Senior Secured Notes due 2025
Long-term debt
Debt instrument principal amount \| €						€ 75,000,000
Debt instrument interest rate		3.75%			3.75%	3.75%			3.75%
Principal amount outstanding \| $					$ 83.9					$ 440.9
Kronos International, Inc \| 9.50% Senior Secured Notes due 2029
Long-term debt
Debt instrument interest rate		9.50%			9.50%	9.50%			9.50%
Debt instrument, interest payment terms					bear interest at 9.50% per annum, payable semi-annually on March 15 and September 15 of each year, payments began on September 15, 2024;
Debt instrument, frequency of periodic payment of interest					semi-annually
Debt instrument, date of first semi-annual interest payment		--03-15	--03-15
Debt instrument, date of second semi-annual interest payment		--09-15	--09-15
Debt Instrument, date of first required semi-annual payment		Sep. 15, 2024	Sep. 15, 2024
Principal amount outstanding \| $					$ 391.7
Kronos International, Inc \| 9.50% Senior Secured Notes due 2029 \| Collateral Pledged \| Direct Domestic Subsidiary of KII and Guarantors
Long-term debt
Ownership interest percentage owned by parent		100%							100%
Kronos International, Inc \| 9.50% Senior Secured Notes due 2029 \| Collateral Pledged \| Non US Subsidiary Directly Owned by KII or any Guarantor
Long-term debt
Ownership interest percentage owned by parent		65%							65%
Kronos International, Inc \| 9.50% Senior Secured Notes due 2029 \| Collateral Pledged \| Non US Subsidiary Directly Owned by KII or any Guarantor \| Non-voting Common Stock
Long-term debt
Ownership interest percentage owned by parent		100%							100%

Long-term debt - Subordinated,

Long-term debt - Subordinated, Unsecured Term Loan from Contran and Revolving Credit Facilities - Additional Information (Detail) € in Millions, $ in Millions		1 Months Ended	9 Months Ended
	Jul. 17, 2024 USD ($)	Aug. 31, 2024	Sep. 30, 2024 USD ($)	Jul. 17, 2024 EUR (€)	Jul. 16, 2024 USD ($)	Feb. 12, 2024 USD ($)	Feb. 12, 2024 EUR (€)
Long-term debt
Debt instrument interest rate			9.50%
Borrowings			$ 148.6
Repayments			123.9
Subordinated, unsecured term loan
Long-term debt
Debt instrument principal amount						$ 53.7	€ 50
Debt instrument interest rate		9.54%				11.50%	11.50%
Debt instrument basis spread on variable rate		2%
Non Base Rate
Long-term debt
Interest floor rate	0.25%
Global Revolver
Long-term debt
Maximum borrowing capacity	$ 300				$ 225
Fixed charge coverage ratio, minimum value	1%
Borrowings			148.6
Repayments			$ 123.6
Average interest rate on outstanding borrowings			7.89%
Interest rate on the outstanding borrowings			6.96%
Remaining Borrowing			$ 268
Global Revolver \| Non Base Rate \| Minimum
Long-term debt
Debt instrument basis spread on variable rate	1.50%
Global Revolver \| Non Base Rate \| Maximum
Long-term debt
Debt instrument basis spread on variable rate	2%
Global Revolver \| Base Rate \| Minimum
Long-term debt
Debt instrument basis spread on variable rate	0.50%
Global Revolver \| Base Rate \| Maximum
Long-term debt
Debt instrument basis spread on variable rate	2%
Global Revolver \| Canadian Subsidiary Revolving Borrowings Maximum
Long-term debt
Maximum borrowing capacity	$ 35
Global Revolver \| Belgian Revolving Credit Facility
Long-term debt
Maximum borrowing capacity \| €				€ 30
Global Revolver \| German Revolving Credit Facility
Long-term debt
Maximum borrowing capacity \| €				€ 60

Accounts payable and accrued _3

Accounts payable and accrued liabilities - Components of Accounts Payable and Accrued Liabilities (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Accounts payable and accrued liabilities
Accounts payable	$ 155.2	$ 218.7
Accrued sales discounts and rebates	23.6	22.5
Employee benefits	34.6	24.7
Accrued interest	2	5
Operating lease liabilities	$ 3.7	$ 3.9
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Total	Total
Other	$ 64.7	$ 49.3
Total	296.7	355.4
Other payable
Accounts payable and accrued liabilities
Current payables to affiliates		0.6
Louisiana Pigment Company, L.P.
Accounts payable and accrued liabilities
Current payables to affiliates		19.9
Valhi
Accounts payable and accrued liabilities
Current payables to affiliates	$ 12.9	$ 10.8

Other noncurrent liabilities -

Other noncurrent liabilities - Components of Other Noncurrent Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Other noncurrent liabilities
Asset retirement obligations	$ 14.5	$ 7.2
Accrued postretirement benefits	6.3	6.4
Employee benefits	4.7	4.9
Earn-out liability	4.2
Other	2.8	3.3
Total	$ 32.5	$ 21.8

Revenue recognition - Disaggreg

Revenue recognition - Disaggregation of Net Sales by Place of Manufacture and to Location of Customer (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	$ 484.7	$ 396.9	$ 1,464	$ 1,266.4
Point of origin
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	484.7	396.9	1,464	1,266.4
Point of origin \| Reportable geographical components \| United States
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	290	250.6	810.6	739.8
Point of origin \| Reportable geographical components \| Germany
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	217.4	182.3	645.8	561.9
Point of origin \| Reportable geographical components \| Canada
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	90.9	93	277.8	267.8
Point of origin \| Reportable geographical components \| Belgium
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	64.6	49.3	195.2	163.6
Point of origin \| Reportable geographical components \| Norway
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	66.3	40.7	215	187.9
Point of origin \| Eliminations
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	(244.5)	(219)	(680.4)	(654.6)
Point of destination
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	484.7	396.9	1,464	1,266.4
Point of destination \| Europe
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	228.1	179.9	665.6	580
Point of destination \| North America
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	179.8	165.1	528.3	466.7
Point of destination \| Other
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	$ 76.8	$ 51.9	$ 270.1	$ 219.7

Employee benefit plans - Compon

Employee benefit plans - Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Gain (loss) due to settlement			$ (1.3)
Expected contributions for pension plans in 2024						$ 17
Foreign Pension Plans Defined Benefit \| Defined benefit pension plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1.6	$ 1.6		$ 4.9	$ 4.7
Interest cost	4.9	5.2		14.8	15.4
Expected return on plan assets	(5.2)	(4.8)		(15.7)	(14.4)
Recognized actuarial losses	0.7	0.6		1.9	1.8
Settlements					1.3
Total	$ 2	$ 2.6		$ 5.9	$ 8.8

Income taxes - Components of In

Income taxes - Components of Income Taxes and Comprehensive Provision for Income Taxes Allocation (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Schedule Of Income Tax [Line Items]
Expected tax expense (benefit), at U.S. federal statutory income tax rate of 21%	$ 19.9	$ (6.1)	$ 28.2	$ (13.3)
Non-U.S. tax rates	0.2	(2)	0.3	(4.6)
Incremental net tax benefit on earnings and losses of U.S. and non-U.S. companies	(2.6)	(1.2)	(5.3)	(2.4)
Valuation allowance, net	2.8	0.4	6.4	1.2
Global intangible low-tax income, net	1.2	(0.2)	2.8	(0.1)
Nondeductible expenses	0.3	0.2	1	0.6
Other, net	0.9	0.2	1.3	(1.1)
Income tax expense (benefit)	22.7	(8.7)	34.7	(19.7)
Comprehensive provision (benefit) for income taxes allocable to:
Net income (loss)	22.7	(8.7)	34.7	(19.7)
Other comprehensive income (loss):
Total	$ 22.8	$ (8.7)	$ 35.1	$ (19.1)
U.S. Federal statutory income tax rate	21%	21%	21%	21%
Defined benefit pension plans
Other comprehensive income (loss):
Pension plans	$ 0.1	$ 0.1	$ 0.4	$ 0.7
OPEB Plans
Other comprehensive income (loss):
Pension plans		$ (0.1)		$ (0.1)

Stockholders' equity - Addition

Stockholders' equity - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended	9 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2023	Sep. 30, 2023	Sep. 30, 2024
Accumulated Other Comprehensive Income Loss [Line Items]
Number of shares authorized for repurchase					2,000,000
Aggregate purchase price				$ 2.8
Shares available for repurchase under the plan					1,017,518
Common stock
Accumulated Other Comprehensive Income Loss [Line Items]
Stock repurchased and acquired in market transactions	154,018	159,796
Treasury Stock, Common
Accumulated Other Comprehensive Income Loss [Line Items]
Aggregate purchase price			$ 2.8	$ 2.8
Treasury stock purchased	323,814	133,897

Stockholders' equity - Schedule

Stockholders' equity - Schedule of Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	$ 774.6	$ 876.5	$ 808.3	$ 957.2
Balance at end of period	847.4	833.2	847.4	833.2
Currency translation
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	(284.2)	(281.9)	(265.5)	(269.2)
Other comprehensive income (loss)	6.3	(1.4)	(12.4)	(14.1)
Balance at end of period	(277.9)	(283.3)	(277.9)	(283.3)
Accumulated Defined benefit pension plans \| Defined benefit pension plans
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	(75)	(61.1)	(76)	(63.1)
Other comprehensive income - amortization of prior service cost and net losses included in net periodic pension cost	0.5	0.4	1.5	1.5
Settlement loss				0.9
Balance at end of period	(74.5)	(60.7)	(74.5)	(60.7)
Accumulated Defined benefit pension plans \| OPEB Plans
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	0.4	0.7	0.4	0.8
Other comprehensive income - amortization of prior service cost and net losses included in net periodic pension cost		(0.1)		(0.2)
Balance at end of period	0.4	0.6	0.4	0.6
Total Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	(358.8)	(342.3)	(341.1)	(331.5)
Other comprehensive income (loss)	6.8	(1.1)	(10.9)	(11.9)
Balance at end of period	$ (352)	$ (343.4)	$ (352)	$ (343.4)

Financial Instruments - Financi

Financial Instruments - Financial Instruments not Carried at Fair Value but which Require Fair Value Disclosure (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Jul. 30, 2024	Feb. 12, 2024	Dec. 31, 2023
Financial Instrument At Fair Value [Line Items]
Debt instrument interest rate	9.50%
Carrying amount
Financial Instrument At Fair Value [Line Items]
Cash, cash equivalents and restricted cash	$ 102.9			$ 202.1
Revolving credit facility	25
Fair value
Financial Instrument At Fair Value [Line Items]
Cash, cash equivalents and restricted cash	102.9			$ 202.1
Revolving credit facility	$ 25
9.50% Senior Secured Notes due 2029
Financial Instrument At Fair Value [Line Items]
Debt instrument interest rate	9.50%	9.50%	9.50%	9.50%
9.50% Senior Secured Notes due 2029 \| Carrying amount
Financial Instrument At Fair Value [Line Items]
Long-term debt - Fixed rate	$ 391.7
9.50% Senior Secured Notes due 2029 \| Fair value
Financial Instrument At Fair Value [Line Items]
Long-term debt - Fixed rate	$ 427.9
3.75% Senior Secured Notes due 2025
Financial Instrument At Fair Value [Line Items]
Debt instrument interest rate	3.75%			3.75%
3.75% Senior Secured Notes due 2025 \| Carrying amount
Financial Instrument At Fair Value [Line Items]
Long-term debt - Fixed rate	$ 83.9			$ 440.9
3.75% Senior Secured Notes due 2025 \| Fair value
Financial Instrument At Fair Value [Line Items]
Long-term debt - Fixed rate	$ 83.3			$ 424.5

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) - EUR (€)	Sep. 30, 2024	Jul. 30, 2024	Feb. 12, 2024	Dec. 31, 2023
Financial Instrument At Fair Value [Line Items]
Debt instrument interest rate	9.50%
3.75% Senior Secured Notes due 2025
Financial Instrument At Fair Value [Line Items]
Debt instrument interest rate	3.75%			3.75%
Debt instrument estimated market price per 1000 principal amount	€ 993
Debt instrument base principal amount	€ 1,000
9.50% Senior Secured Notes due 2029
Financial Instrument At Fair Value [Line Items]
Debt instrument interest rate	9.50%	9.50%	9.50%	9.50%
Debt instrument estimated market price per 1000 principal amount	€ 1,089
Debt instrument base principal amount	€ 1,000

Other operating income (expen_2

Other operating income (expense), net (Detail) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2024
Other operating income (expense), net
Insurance settlement gain	$ 0.3	$ 0.5	$ 1.7	$ 2.5

Restructuring costs (Detail)

Restructuring costs (Detail) $ in Millions	3 Months Ended	9 Months Ended
Restructuring costs (Detail) $ in Millions	Dec. 31, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 employee
Restructuring Cost and Reserve [Line Items]
Number of individuals impacted from workforce reductions \| employee			100
Workforce reduction costs accrued	$ 6
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Selling General And Administrative Expense
Sulfate Process Line at Plant in Varennes, Canada
Restructuring Cost and Reserve [Line Items]
Workforce reduction costs accrued		$ 2
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]		Cost Of Goods And Services Sold
Accelerated depreciation		$ 14

Restructuring costs - Accrued w

Restructuring costs - Accrued workforce reduction cost (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Dec. 31, 2023	Sep. 30, 2024
Restructuring costs
Accrued workforce reduction costs at December 31, 2023		$ 5
Workforce reduction costs accrued	$ 6
Workforce reduction costs accrued		2
Workforce reduction costs paid		(4.9)
Currency translation adjustments, net		(0.1)
Accrued workforce reduction costs at September 30, 2024	5	2
Amounts recognized in the balance sheet:
Current liability		2
Total	$ 5	$ 2

Acquisition of Remaining Join_3

Acquisition of Remaining Joint Venture Interest in LPC (Details) $ in Millions		3 Months Ended	9 Months Ended
	Jul. 16, 2024 USD ($) T	Sep. 30, 2024 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Business Acquisition [Line Items]
Borrowings			$ 148.6
Gain on remeasurement of investment in TiO2 manufacturing joint venture		$ 64.5	64.5
Investment in TiO2 manufacturing joint venture				$ 111
Goodwill		$ 2.6	2.6
Global Revolver
Business Acquisition [Line Items]
Borrowings			$ 148.6
Louisiana Pigment Company, L.P.
Business Acquisition [Line Items]
Percentage acquired	50%
Cash consideration	$ 185
Working capital adjustment	$ 11
Percentage held through wholly-owned subsidiary	50%
Business acquisition, additional production volume acquired \| T	78,000
Business acquisition, transaction costs	$ 2.2
Earn-out liability	4.2
Gain on remeasurement of investment in TiO2 manufacturing joint venture	64.5
Fair value of existing equity interest in LPC	178.2
Investment in TiO2 manufacturing joint venture	113.7
Goodwill	2.6
Goodwill, expected tax deductible amount	0.1
Pro forma revenue	0
Louisiana Pigment Company, L.P. \| Global Revolver
Business Acquisition [Line Items]
Borrowings	132.1
Louisiana Pigment Company, L.P. \| EBITDA of $650 million
Business Acquisition [Line Items]
Earn-out payment	5
Louisiana Pigment Company, L.P. \| EBITDA is between $650 million and $750 million
Business Acquisition [Line Items]
Earn-out payment	10
Louisiana Pigment Company, L.P. \| Minimum
Business Acquisition [Line Items]
Aggregate EBITDA considered for determining earnout payment	$ 650
Property plant and equipment useful life	5 years
Louisiana Pigment Company, L.P. \| Maximum
Business Acquisition [Line Items]
Earn-out payment	$ 15
Aggregate EBITDA considered for determining earnout payment	$ 730
Property plant and equipment useful life	20 years
Louisiana Pigment Company, L.P. \| Maximum \| EBITDA of $750 million or more
Business Acquisition [Line Items]
Earn-out payment	$ 15

Acquisition of Remaining Join_4

Acquisition of Remaining Joint Venture Interest in LPC - Assets acquired and liabilities assumed (Details) - USD ($) $ in Millions	Jul. 16, 2024	Sep. 30, 2024
Allocation of purchase price to identifiable assets acquired and liabilities assumed:
Goodwill		$ 2.6
Louisiana pigment company, L.P
Consideration:
Cash consideration	$ 185
Working capital adjustment	(11)
Earn-out liability	4.2
Total fair value of consideration	178.2
Fair value of investment in TiO2 manufacturing joint venture	178.2
Total	356.4
Allocation of purchase price to identifiable assets acquired and liabilities assumed:
Cash and cash equivalents	21.3
Restricted cash	1.3
Accounts and other receivables, net	0.2
Inventories, net	82
Prepaid expenses and other	0.6
Other assets	10.7
Net property and equipment	268.5
Accounts payable and accrued liabilities	(21.7)
Other noncurrent liabilities	(6.4)
Deferred tax liability	(2.7)
Total net identifiable assets acquired	353.8
Goodwill	2.6
Total	$ 356.4